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The sowing of 90 kg (200 lb) selected seeds in a distance of 60 to 80 cm (24–31 in), either by hand or by seed drill, follows. Plants germinate fast due to the high-fat content in the seeds. [3] Crop rotation aspects. Early varieties of L. mutabilis, with a growing period of about 150 days, can be cultivated in rotation with potatoes and cereals
Plants that eventually release some of their seed spontaneously in the absence of a trigger are weakly serotinous. Finally, some plants release all of their seed spontaneously after a period of seed storage, but the occurrence of a trigger event curtails the seed storage period, causing all seed to be released immediately; such plants are ...
The seeds germinate best in very moist, but not wet, conditions and temperatures of 22–29 °C. Only slightly smaller is G. masafuerae of the Juan Fernandez Islands off the Chilean coast. They can have leaves up to 2.9 m (9 ft 6 in) in width on stout leaf stalks 1.5 m (4 ft 11 in) long and 11 cm ( 4 + 1 ⁄ 2 in) thick according to Skottsberg ...
Seeds also appear to be stimulated to germinate by alternating cool nights with warm days, between 10 °C and 20 °C. The seedlings are best grown out under light shade, such as in a shade-house in South Africa. [6] Like all species of Protea, in cultivation the plants are susceptible to a large variety of pests and diseases. In South Africa ...
Red mangrove seeds germinate while still on the parent tree. In plants, vivipary occurs when seeds or embryos begin to develop before they detach from the parent. Plants such as some Iridaceae and Agavoideae grow cormlets in the axils of their inflorescences. These fall and in favourable circumstances they have effectively a whole season's ...
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Hershey, D. R. (2004): The widespread misconception that the tambalacoque absolutely required the dodo for its seeds to germinate. Plant Science Bulletin 50: 105–108. Hill, A. W. (1941): The genus Calvaria, with an account of the stony endocarp and germination of the seed, and description of the new species. Annals of Botany 5(4): 587–606.
Anymore than that and the viability of seeds decreases over time. After two weeks of pre-chilling, little barley seeds go into dormancy, allowing little barley to overwinter and come back year after year. Seeds germinate best between 17 and 20 degrees C. The more mature the seeds, the better they germinate. [8]